Annular insert for boxes



United States Patent ANNULAR INSERT FOR BoxEs Kurt Beyer, Thansau, nearRosenheim, Germany, assignor to Willy Hesselmann, Rosenheim, GermanyApplication January 4, 1955, Serial No. 479,753

1 Claim. (Cl. 220-90) This invention relates to a supplementary insertor attachment for glue boxes of the type having an inserted cover whichis formed with a depression tightly fitting into a complementary openingor rim of the box.

Such inserted covers have the drawback that by the repeated pressing ofthe cover into the opening of the box the protective coating provided onthe material and consisting of tin in case of tin boxes, or of a lacqueror varnish in case of boxes of black sheet iron, is rubbed oif, so thatthe filling material, if it is produced on an aqueous basis, immediatelyattacks the material and causes a more or less intensive corrosion,whereby the contents becomes mean-looking and in many instances is evenspoiled.

Furthermore, many of the users of such inserted covers are in the habitof stripping the brush at the wall of the box, whereby incrustations areformed thereon. As a result, the cover can no longer be inserted, buthas to be put loosely on the box, whereby the contents of the box veryquickly tends to thickening or drying out. This causes substantiallosses of the contents of the box, which otherwise would be serviceable.

It is an object of the present invention to provide means foreliminating these disadvantages.

With these objects in view, according to the present invention there isprovided an annular insert consisting of a non-rusting and non-corrosivematerial and adapted to be inserted into the box after the openingthereof, in place of the inserted cover. The upper opening of theinsert, facing away from the interior of the container, is adapted forreceiving a closure, more particularly the inserted cover belonging tothe box, and in the interior of the insert, more particularly in itslower third, there is provided a bridge member consisting of one or twotransverse bars and serving for stripping and supporting the brush.Preferably, the outer periphery of the insert at its lower end is formedwith step-shaped formations permitting inserting of the insert intoboxes with openings of different diameters, more particularly inaccordance with the standard sizes of the boxes. By way of alternativeor in combination with steps, there may be provided one or more conicalconstrictions in the lower range of the insert. I

It is an important feature of the present invention that the insertconsists of a non-rusting and non-corroding material, more particularly,artificial resin, and that the cross bar also consists of a materialwhich will not be attacked by the contents of the box.

Advantageously the outer periphery of the insert is fluted or formedwith bridges or similar projections serving to ensure a firm grip of thehuman hand on the insert.

Moreover, it is important to construct the insert in such a way that theinternal or seating diameter of the insert in the upper part receivingthe inserted cover corresponds to the diameter of the insert in theregion of one of the steps. The insert also may be formed at its upperend facing away from the interior of the container, with stepscorresponding to the steps arranged in the part of the insert facing theinterior of the container, in such a way that the internal seatingdiameters in the upper stepped region correspond to the external seatingdiameters in the lower stepped range of the insert.

Other and further objects, features and advantages of the invention willbe pointed out hereinafter and appear in the appended claim forming partof the application.

In the accompanying drawings several new preferred embodiments of theinvention are shown by way of illustration and not by way of limitation.

Fig. l is a longitudinal section through an open box with an insertedattachment or insert in accordance with the present invention and aclosure thereof, formed by the inserted cover belonging to the box,

Fig. 2 is a plan view thereof, with the cover removed, and

Figs. 3 and 4 are fragmentary sections similar to Fig. 1,.

of two further embodiments of the insert.

Similar reference numerals denote similar parts in the different views.

Conventional sheet metal boxes 1 are closed by so called inserted covers2. In accordance with the present invention, on removal of the cover 2and of a protective foil 3 an annular insert 4 is placed into the rim 5of the box, as indicated in Fig. 1. This insert 4 in accordance w thFigs. 1 and 3 may be closed by the inserted cover 2 of the box oraccording to Fig. 4 by a separate closure member 6. i

The inserted ring 4 is formed at its circumference with ridges 7 orother corrugations facilitating the inserting and removing of the cover.The cross section of the ring 4 according to Fig. l is shaped in such away that the lower part facing the interior of the container is formedwith a step 8 serving for insertion of the attachment or ring into therim 5 of the box, while the upper end facing away from the interior ofthe container forms an opening of such a diameter that the cover 2belonging to the box 1 fits into this opening. The internal diameter ofthe upper opening of the insert thus corresponds to the externaldiameter of the lower part of the insert as indicated by the dotted line9.

Provided in the lower part of the insert 4 facing the interior of thecontainer is a bridge or cross bar 10 serving for stripping andsupporting the brush when the box with its insert is used.

As shown in Fig. 1, a further step 11 may be provided at the lower endof the box for using the insert 4 also for boxes 1 having a smallerdiameter. The boxes in question are standardized as to their dimensionsso that these two steps 8 and 11 in most instances will be sufiicient.

Similarly, the upper opening of the insert 4 may be provided with a stepcorresponding to the diameter of the smaller boxes. The smaller portionof such a stepped upper seating surface is indicated at 13 in Fig. l, indotted lines, its internal diameter corresponding to the smallerexternal diameter of the lower external seating surface 11, as shown bythe dotted line 9, for reception of a smaller cover 2'.

By way of alternative, and as shown in Figs. 3 and 4, in addition to thesteps 8 and 11, or combined therewith, conical seating surfaces 12 maybe provided on the insert, in such a way that the same may also beinserted in openings of any intermediate diameter. As indicated in Fig.4, a similar conical constriction 12 may also be provided in the upperregion of the insert 4 facing away from the container, so that covers 2or 6 of any intermediate diameter may be inserted. Fig. 4 also shows across bar 10 which may be of advantage in some instances.

It will be appreciated that the insert 4 which acts as a protectiveinsert, is suitable for boxes and containers of any kind, with round,rectangular, or other polygonal shape.

While the invention has been described in detail with respect to certainnow preferred examples and embodiments of the invention it will beunderstood by those skilled in the art after understanding the inventionthat various changes and modifications may be made without departingfrom the spirit and scope of the invention and it is intended,therefore, to cover all such changes and modifications in the appendedclaim.

I claim:

An insert adapted to be used with a plurality of cans having circularopen ends of varying predetermined diameters with removably insertedcovers of corresponding predetermined diameters, comprising a one-piecering member of a resilient, non-rusting, non-corrosive substance, saidring member having an external conical sealing surface and an internalconical sealing surface parallel and complementary to said externalconical sealing surface, said ring member being adapted for insertioninto the circular open end of one of the cans when its respective coveris removed from said can, and in place a of the cover, whereby said ringmembers external conical sealing surface may be placed in sealingengagement with the open end of the can, and its respective coverinserted in the ring member in sealing engagement with said internalconical surface of the latter, and a cross bar secured to said ringmember for stripping off and supporting a brush.

References Cited in the file of this patent UNITED STATES PATENTS

